The Central Pacific Hurricane Center (CPHC) is co-located with the National Weather Service Forecast Office in Honolulu. The CPHC issues tropical cyclone warnings, watches, advisories, discussions, and statements for tropical cyclones between 140 Degrees West Longitude to the International Dateline.

The hurricane season in the Pacific officially begins on June 1 and ends on November 30, however tropical cyclones can and do occur year round. The National Weather Service Forecast Office in Honolulu activates the CPHC when: (1) a tropical cyclone moves into the Central Pacific from the Eastern Pacific, (2) a tropical cyclone forms in the Central Pacific, or (3) a tropical cyclone moves into the Central Pacific from the West.

During Cental Pacific tropical cyclone events, bulletins are regularly scheduled every six hours: 1500Z/0500HST, 2100Z/1100HST, 0300Z/1700HST, and 0900Z/2300HST. When significant changes take place and/or a tropical cyclone watch or warning is in effect, intermediate bulletins are issued with the latest positions and forecasts.

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